dma/idxd: add datapath structures

[dpdk.git] / drivers / dma / idxd / idxd_common.c

diff --git a/drivers/dma/idxd/idxd_common.c b/drivers/dma/idxd/idxd_common.c
index 08ed3e4..46598c3 100644 (file)
--- a/drivers/dma/idxd/idxd_common.c
+++ b/drivers/dma/idxd/idxd_common.c
@@ -10,6 +10,35 @@
 
 #define IDXD_PMD_NAME_STR "dmadev_idxd"
 
+int
+idxd_dump(const struct rte_dma_dev *dev, FILE *f)
+{
+       struct idxd_dmadev *idxd = dev->fp_obj->dev_private;
+       unsigned int i;
+
+       fprintf(f, "== IDXD Private Data ==\n");
+       fprintf(f, "  Portal: %p\n", idxd->portal);
+       fprintf(f, "  Config: { ring_size: %u }\n",
+                       idxd->qcfg.nb_desc);
+       fprintf(f, "  Batch ring (sz = %u, max_batches = %u):\n\t",
+                       idxd->max_batches + 1, idxd->max_batches);
+       for (i = 0; i <= idxd->max_batches; i++) {
+               fprintf(f, " %u ", idxd->batch_idx_ring[i]);
+               if (i == idxd->batch_idx_read && i == idxd->batch_idx_write)
+                       fprintf(f, "[rd ptr, wr ptr] ");
+               else if (i == idxd->batch_idx_read)
+                       fprintf(f, "[rd ptr] ");
+               else if (i == idxd->batch_idx_write)
+                       fprintf(f, "[wr ptr] ");
+               if (i == idxd->max_batches)
+                       fprintf(f, "\n");
+       }
+
+       fprintf(f, "  Curr batch: start = %u, size = %u\n", idxd->batch_start, idxd->batch_size);
+       fprintf(f, "  IDS: avail = %u, returned: %u\n", idxd->ids_avail, idxd->ids_returned);
+       return 0;
+}
+
 int
 idxd_dmadev_create(const char *name, struct rte_device *dev,
                   const struct idxd_dmadev *base_idxd,
@@ -19,6 +48,10 @@ idxd_dmadev_create(const char *name, struct rte_device *dev,
        struct rte_dma_dev *dmadev = NULL;
        int ret = 0;
 
+       RTE_BUILD_BUG_ON(sizeof(struct idxd_hw_desc) != 64);
+       RTE_BUILD_BUG_ON(offsetof(struct idxd_hw_desc, size) != 32);
+       RTE_BUILD_BUG_ON(sizeof(struct idxd_completion) != 32);
+
        if (!name) {
                IDXD_PMD_ERR("Invalid name of the device!");
                ret = -EINVAL;